Finding the Third Proportional to 19,445,632 and 42,390,272

Step by Step Solution

1. Step 1: Write the proportion equation
   19,445,632 : 42,390,272 = 42,390,272 : x
2. Step 2: Convert to fraction form
   19,445,632/42,390,272 = 42,390,272/x
3. Step 3: Cross multiply
   19,445,632x = 42,390,272 × 42,390,272
4. Step 4: Simplify right side
   19,445,632x = 1,796,935,160,233,984
5. Step 5: Solve for x
   x = 1,796,935,160,233,984/19,445,632
6. Step 6: Final answer
   x = 92,408,164.48